Low-liquid-level alarm



W. GRAH.

LOW LIQUID LEVEL ALARM. APPLICATION r1150 OCT. 14, 1920.

Patented Mar. 15,1921,

UNITED STATES PATENT OFFICE.

'WILLIAM GRAB, OF WATERVILLE, OHIO.

LOW-LIQUID-LEVEL ALARM.

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Be it lmown that I, WILLIAM GRAH, a citizen of the United States, and aresident of lVaterville, county of Lucas, and State of Ohio, have madean Invention Appertaining to Low-Liquid-Level Alarms; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the characters of reference markedthereon, which form a part of this specification.

This invention relates to audible alarms for use particularly inconnection with the liquid containing tanks of automobiles to indicate apredetermined low liquid level condition therein, and the object of theinvention is the provision of a simple and improved device for thispurpose.

The invention is fully described in the following specification, andwhile in its broader aspect it is capable of embodiment in numerousforms, a preferred embodiment thereof is illustrated in the accompanyingdrawings, in which,

Figure 1 is a central vertical section of a liquid containing tankequipped with a device embodying the invention, and Fig. 2 is afragmentary plan view thereof.

Referring to the drawings, 1 designates a liquid tank or container, forinstance, the gasolene tank of an automobile, which tank has an opening2, preferably in its top,

through which the tank may be filled, the opening being closed by aremovable cap 3.

In the present embodiment of the invention the cap 3 is provided on itstop with an inverted U-shaped member or yoke 4, centrally within whichis loosely suspended a bell, gong or other resonant member 5 for freevibratory or swinging movements relative to the cap. The member 5 isswingingly suspended from the yoke 4 in the present instance, by a rivet6. A plurality of studs 7 are mounted on the top of the plug or closuremember 3 in position to have striking contact with the edge of theresonant member 5 when rocked or vibrated, whereby said member is rungor sounded to transmit an alarm. The studs 7 are preferably normallyspaced from the edge of the member 5 to permit a free rocking of themember relative thereto.

A float 8 is disposed within the tank 1 Specification of Letters Iatent.

Patented Mar. 15, 1921.

Application filed October 14, 1920., Serial No. 416,852.

for riuing on the liquid 9 therein, and a stem or rod 10 projects upwardfrom the float loosely through a circular opening in the cap member 3and into the interior of the bell or other resonant member 5. The upperend of the stem 10 is provided, in the present instance, with a head orenlargement 11 of disk formwhich, when the 8 and connected parts will belowered suf-' ficiently to disengage the resonant member 5 and permit itto be freely rocked or oscillated into or out of striking contact withthe studs 7 by the motion or vibratory action of the associated vehiclewhen running.

It is preferable to dispose the bell carrying member or yoke 1 withoutthe bell so it may serve both as a protection for the bell and has ahandle to facilitate a turning of the cap member 3 into or out of itsopening. The yoke 4. in the present instance, is shown as having itsfeet secured to the cap 3 by screws 12. I wish it understood that myinvention is not limited to any specific construction, arrangement orform of the parts, as it is capable of numerous modifications andchanges without departing from the spirit of the claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is,--

1. The combination with a liquid containing tank mounted for vibratorymovements,

of a resonant member carried by the tank for free rocking movementsrelative thereto, means with which the resonant member when rocked maycoact to sound a signal, and means actuated by the rising and falling ofliquid within the tank to hold the resonant member inoperative when theliquid is above a predetermined low level position in the tank.

2. The combination with a liquid containing tank mounted for vibratorymovements and having an opening in its top portion, a cap for closingsaid opening, a resonant member carried by the cap for free vibratorymovements relative thereto, means carried by the cap for coaction withthe resonant member to sound a signal when the resonant member is freeto rock, afloat disposed in the tank, and means projecting upward fromthe float throughrthe "oapaan'dt; adapted to permit a rocking of theresonant member to sound asignal when .thefioat is 1 at a predeterminedlow level position in the tank and to coaet with 'thereson'ant member toprevent a rocking thereof relative to the cap whenthe float israisedfrom its predetermined low level position. i

" 3. In a vehicle, a liquid eontaining tank having an opening in it topportion, a removable cap for closing said opening and having a yokemember and a stationary stud rising therefrom, a resonant membersuspended from the yoke for free svvinging ing from the float to a pointWithin the resonant member and adapted to permit movement of the gongtosound a signal when liquid'in'the' tank is below a predetermined levelandto coaetwith the resoonant member to prevent signalsounding movementth reof when the liquid is ab said level. 1; v v

In testimony whereof @I have hereunto signed my name to thisspecification.

,WILLIIAM'IGRAH."

